BoostinZ28

well i got my 383 in and had the computer tuned for 30lb injectors cause the injectors that came with my motor had accel injectors with 30 stamped on one side so i figured they were 30 lb injectors but after my engine running really rough and i finally pulled a few plugs out they were all black so my engine is running way rich im thinking. lol. so am i wrong on guessing the injector size (dont know if it matters or not but they are yellow topped) and also im running bosch single platinum plugs since thats all they had but my dad mentioned i might need a hotter plug. any ideas?

96capricemgr

search accel injectors and you will find complaints of misslabled injectors as well as a bunch of other problems. They are supposed to be fixing them but a lot of vendors are still selling old stock.

BoostinZ28

well is there any way to test them to see what they are?

Z-RATED94

Test them by putting them on a shelf in the garage, and then buy a set of 30lb. SVOs. Seriously, do a search, many have had problems with Accels, and it looks like you have a good amount of money in mods. Safe yourself the trouble of having problems now or down the road.

hotrod18_69

Only way to test them is to have them flowed, and see what there flow rating comes out too.. And you'd have to find someone that has the machine to flow them..

I also agree with everyone else the you should trash them and get some SVO 30's

roguedriver

Like the others said, go with the SVO's. And your dad is right also. You should probably go 1 heatrange colder on the plug. I used to run AC R44LTS6's on my older H/C NO2 setup. They are 1 range colder then stock. Others will probably recommend the NGK's. I'd get the platinums out of there though.

Ken R.